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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#438819 | #8774. Manhattan Walk | ZSH_ZSH# | AC ✓ | 16ms | 11236kb | C++14 | 692b | 2024-06-11 08:16:23 | 2024-06-11 08:16:23 |
Judging History
answer
#include<bits/stdc++.h>
#define rep(i,a,b) for (int i=(a);i<=(b);i++)
#define drep(i,a,b) for (int i=(a);i>=(b);i--)
typedef long long ll;
using namespace std;
int main()
{
ios::sync_with_stdio(false); cin.tie(0);
int n,m; cin>>n>>m;
double p; cin>>p;
vector<vector<double> > f(n,vector<double>(m));
drep(i,m-2,0) f[n-1][i]=p/4+f[n-1][i+1];
drep(i,n-2,0) f[i][m-1]=p/4+f[i+1][m-1];
drep(i,n-2,0) drep(j,m-2,0)
{
double x=f[i+1][j],y=f[i][j+1];
if (x<y) swap(x,y);
f[i][j]=y/2;
if (y+p<x)
{
f[i][j]+=(y+p/2)/2;
continue;
}
double z=x-y;
f[i][j]+=((z/p)*(y+z/2)+(1-z/p)*x)/2;
}
printf("%.10lf\n",f[0][0]);
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 3968kb
input:
2 3 8
output:
2.8750000000
result:
ok found '2.8750000', expected '2.8750000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3912kb
input:
5 5 5
output:
2.4322338689
result:
ok found '2.4322339', expected '2.4322339', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3948kb
input:
1 1 1
output:
0.0000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #4:
score: 0
Accepted
time: 16ms
memory: 11236kb
input:
1000 1000 1000000000
output:
1782317138.8083753586
result:
ok found '1782317138.8083754', expected '1782317138.8083761', error '0.0000000'
Test #5:
score: 0
Accepted
time: 1ms
memory: 3932kb
input:
1 4 5
output:
3.7500000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #6:
score: 0
Accepted
time: 1ms
memory: 3932kb
input:
4 1 5
output:
3.7500000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #7:
score: 0
Accepted
time: 1ms
memory: 3792kb
input:
1 1 1000000000
output:
0.0000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3816kb
input:
1 2 1000000000
output:
250000000.0000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 4000kb
input:
2 1 1000000000
output:
250000000.0000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3788kb
input:
1 2 1
output:
0.2500000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3936kb
input:
2 1 1
output:
0.2500000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
1 10 3
output:
6.7500000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 4008kb
input:
10 1 3
output:
6.7500000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 9ms
memory: 11188kb
input:
997 993 998244353
output:
1779941051.3461599350
result:
ok found '1779941051.3461599', expected '1779941051.3461628', error '0.0000000'
Test #15:
score: 0
Accepted
time: 5ms
memory: 6536kb
input:
988 313 886183312
output:
78753022570.4833374023
result:
ok found '78753022570.4833374', expected '78753022570.4833527', error '0.0000000'
Test #16:
score: 0
Accepted
time: 3ms
memory: 5148kb
input:
583 286 322190846
output:
8636356976.8437118530
result:
ok found '8636356976.8437119', expected '8636356976.8437138', error '0.0000000'
Test #17:
score: 0
Accepted
time: 6ms
memory: 7232kb
input:
892 468 494964816
output:
17125998682.7292423248
result:
ok found '17125998682.7292423', expected '17125998682.7292328', error '0.0000000'
Test #18:
score: 0
Accepted
time: 1ms
memory: 4068kb
input:
26 882 386682745
output:
78231677700.7504882812
result:
ok found '78231677700.7504883', expected '78231677700.7504883', error '0.0000000'
Test #19:
score: 0
Accepted
time: 8ms
memory: 9568kb
input:
867 926 422131798
output:
945100500.3991063833
result:
ok found '945100500.3991064', expected '945100500.3991071', error '0.0000000'
Test #20:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
37 68 19
output:
62.2844598802
result:
ok found '62.2844599', expected '62.2844599', error '0.0000000'
Test #21:
score: 0
Accepted
time: 1ms
memory: 3952kb
input:
23 90 80
output:
860.0506987358
result:
ok found '860.0506987', expected '860.0506987', error '0.0000000'
Test #22:
score: 0
Accepted
time: 0ms
memory: 3960kb
input:
43 55 85
output:
118.3892679676
result:
ok found '118.3892680', expected '118.3892680', error '0.0000000'
Test #23:
score: 0
Accepted
time: 1ms
memory: 3848kb
input:
93 66 43
output:
97.9048408588
result:
ok found '97.9048409', expected '97.9048409', error '0.0000000'
Test #24:
score: 0
Accepted
time: 1ms
memory: 4004kb
input:
78 93 30
output:
44.8454523265
result:
ok found '44.8454523', expected '44.8454523', error '0.0000000'
Test #25:
score: 0
Accepted
time: 0ms
memory: 3820kb
input:
9 5 481032867
output:
400507342.3667383194
result:
ok found '400507342.3667383', expected '400507342.3667384', error '0.0000000'
Test #26:
score: 0
Accepted
time: 1ms
memory: 4200kb
input:
366 73 3
output:
149.4864642331
result:
ok found '149.4864642', expected '149.4864642', error '0.0000000'
Test #27:
score: 0
Accepted
time: 1ms
memory: 3992kb
input:
6 4 5
output:
2.8946451697
result:
ok found '2.8946452', expected '2.8946452', error '0.0000000'
Test #28:
score: 0
Accepted
time: 0ms
memory: 3792kb
input:
8 10 5
output:
3.3973608525
result:
ok found '3.3973609', expected '3.3973609', error '0.0000000'
Test #29:
score: 0
Accepted
time: 0ms
memory: 3956kb
input:
10 1 7
output:
15.7500000000
result:
ok found '15.7500000', expected '15.7500000', error '0.0000000'
Test #30:
score: 0
Accepted
time: 0ms
memory: 3724kb
input:
10 7 10
output:
7.3716466074
result:
ok found '7.3716466', expected '7.3716466', error '0.0000000'
Test #31:
score: 0
Accepted
time: 0ms
memory: 4032kb
input:
2 8 1
output:
1.3271069195
result:
ok found '1.3271069', expected '1.3271069', error '0.0000000'